Lock arrangement for window structure



July 27, 1965 J. P. MALMRosE l-:TAL 3 ,7196497 LOCK ARRANGEMEHT FOR WINDOW STRUCTURE Filed June 4, 1965 UTA.

gq 25M United States Patent O 3,196,497 LOCK ARRANGEMENT FOR WKNDOW STRUCTURE .lohn P. Malmrose and Bulow A. Peterson, Kev/ance, Ill.,

assignors to Kewanee Manufacturing Company, a corporation of Iliinois Filed .lune 4, 1963, Ser. No. 285,532 2 Claims. (Cl. 20-53) This invention relates to window structure combinations of the type commonly employed for basement windows and, more particularly, is concerned with a simplified locking arran-gement for such structures that prevents accidental opening thereof and that cooperates in holding the window sash against rattle.

In the usual basement window installation, a window frame is embedded directly in the concrete foundation wall and defines a window opening bordered about its periphery by a fore and aft inwardly facing sash stop at -a location intermediately of fore and aft extremities of the window frame. A sash frame of substantially less dimension in the fore and aft direction is arranged to seat in closed position within the window frame to span the window opening and abut the sash stop.

The principal object of the present invention is to provide a simple clip type lock arrangement mountable on the sash to engage an abutment provided on the window frame.

Another object of the invention is to provide a sash lock arrangement of this type in a window structure combination having a base mounting pocket of tapered form to receive the sash under resilient loading developed by a resilient type lock, thereby preventing rattling.

Another object is to provide a separate clip of spring steel that is resiliently yieldable to effect lock release.

Other objects and advantages of the invention will become apparent during the course of the following description.

ln the accompanying drawings forming a part of this specification and in which like numerals are employed to designate like parts throughout the same:

FIG. l is an elevational view of a window structure combination as seen from the inside looking out;

FIG. 2 is an enlarged fragmentary sectional View taken through the frame as indicated by the lines 2 2 on FIG. l, with mid-height portions of the frame omitted;

FIG. 3 is an enlarged fragmentary sectional view taken on the lines 3 3 of FIG. l with mid-width portions of the structure omitted;

FIG. 4 is an enlarged detailed view of a sash lock and is taken on the lines indicated at 4 4 of FIG. l; and

FIG. 5 is a perspective view of the lock.

For purposes of disclosure the invention is herein illustrated in FIG. l as embodied in a basement-type window structure, designated generally as 1t), in which a sash frame 11 seats in closed relation within a metal window frame 12 which is intended to be cast in place in a concrete foundation wall (not shown). The window frame 12 delines a window opening bordered about its periphery by a sash stop S (see FIGS. 2 and 3) located intermediately of the fore and aft extremities of the window frame.

Thus, the window frame 12 is formed from spaced pairs of horizontal and vertical rails to provide a head 12H and a sill 12S connected by vertical jambs 12J to collectively define the window opening and sash stop. The sash frame 11 is comprised of correspondingly spaced pairs of horizotal rails 11H and 11S and vertical rails 11i, with these sash frame rails being of substantially less fore and aft dimension than the window frame rails 3,196,497 Patented July 27, 1965 ice and arranged to seat in closed position within the window frame to span the window opening and abut the sash stop S. The sash rails 11H, 11S and 11] are preferably of L-shaped cross section and each presents a fore and aft inwardly directed planar flange. An intermediate vertical rail 11T of T-shaped cross section completes the sash framing.

In the window structure 10 illustrated herein the sash frame seats at a location in the window frame intermediately of fore and aft extremities thereof and undergoes swinging movement towards and away from fully closed position in the window frame. A lock 13y is shown mounted centrally on the upper sash rail 11H in straddling relation to the leg flange of the intermediate sash rail 11T. The head rail 12H of the window frame is provided with an internal marginal abutment surface 14 facing outwardly through the window opening at a location spaced slightly inwardly of the inner extremity of the sash flange and functions as a keeper for cooperation with the lock 13 when the sash frame 11 is seated in closed position in the window frame 12.

A hinge stop arrangement is provided to accommodate swingable mounting of the sash frame 11 between closed position and one or more partially open positions and to provide for total removal of the sash frame 11. Accordingly, each vertical sash rail 11] has a laterally projecting hinge pin 15 at a lower region thereof and each lVertical .window frame rail 12] has internal marginal abutment structure, designated generally at 16, at a corresponding lower region thereof and presenting a generally fore and aft outwardly facing guide Wall 16W spaced inwardly in a fore and aft direction from a corresponding portion of the sash stop to define therebetween a generally vertical entrance trackway T for the corresponding hinge pin 15. The abutment structure 16 has an irregular slot 16S provided therein and opening outwardly in a generally fore and aft direction at the base of the guide wall `16W which, in effect, presents an upper corner bounding the slot.

In the preferred arrangement illustrated herein, the rails are formed steel sections and therefore the abutment 14 and the abutment structure 16 are punched out embossures from each corresponding rail section.

Both the slot 16S and the hinge pin 15 are spaced above the lower edge of the window opening to cooperatively provide an intermediate hinge region controlling partially open positions for the sash. For this purpose the slot has boundary surfaces that include a generally upwardly facing fore and aft extending guide surface 17 leading from the trackway, a contoured surface 18 leading from the inner extremity of the guide surface in a direction generally downwardly and inwardly and then in a direction generally upwardly to define a hinge socket that may receive and retain the hinge pin 15 to support the sash frame at a `first partially open position.

Preferably, the slot 16S is bounded by a further guide surface 19 leading from the inner extremity of the hinge socket in a direction generally upwardly and inwardly and a further contoured surface 20 leading from the extremity of the guide surface in a direction generally downwardly and inwardly and then in a direction generally upwardly to define a second hinge socket for receiving the hinge pin land thereby supporting the sash frame at a further partially open position. This sash frame position is illusin phantom lines in FIG. 2, and -it will be noted that for such position the lower end of the sash frame abuts against a lower region of the sash stop S, resulting in a stable support arrangement for the sash frame at this intermediate position. A similar support arrangement obtains where the sash frame has its hinge pins engaged in the hinge sockets defined by the surfaces 18.

'To install the sash frame 11, it is entered generally downwardly into the window frame along a direction inclined slightly outwardlyV to guide eachpin V15 downward- 1y throughrvits, corresponding trackway to a position im-f During mediately outwardly of its corresponding slot. final closure movement of the sash frame, itswings about the line of support established between the lower sash rail 11S and the sill 12S, and the'ilock'l is enabled to enter 'beneath the abutment surface 14 to `finally snap into engaged position confronting this abutment surface when the sash frame-is fully seated within the window frame. The window sill 12S. has ,an outwardly sloped intermediate wall 12W Vinwardly of the stop S and cooperating therewith in defining a basepocket 21 tapering downwardly to a region narrower than the sash rail 11S to provide better control over the swinging closure movement of the sill. Moreovenrthe lock 13 by reaction with the underface of the head rail 12H normally urges the sash frame downwardly during Vfinal closing movementY to :seat the sash frame forceablyV in wedging engagement in the pocket 21 to thereby prevent any tendencey tov rattleor shake. i i Y The lock 13 -is comprised of a one-piece -spring steel such-that the forces developed-upon the lock 13 'by virtue of 'its locking function against the abutment 14 are directed in a sense to maintain the tongues 23 in fully scated relation upon the flange 11F. rhus, the Ylock may be vdisengaged only by an appropriate release motion.

' ingbordered-abo'ut its periphery bya fore an-d aft inward- Vly facing sash stop at a location intermediatelyl of fore andaft .extremities of said window frame, and a rigid sash frame comprised of corresponding spaced pairs of Yhorizontal vand-vertical rails :of substantially less fore `and aft dimension than said window frame rails and arranged lock body ofV multi-angular lengthwise sectional'coniiguration (see FIG. 4) and it is stably mounted on the planar flange 11F presented by the head rail 11H of the sash frame. plate section 22 extending generally fore and aftvabove the-planar mounting flangel v11F, Va pair of generally The lock body includes an, intermediate to* seat lin closed position ywithin said window yframe to Spanisaid windowV opening and abut .said sash-stop, means mounting said sash frame to undergo swinging movement towards and away from closed position in said window frame, said'sash frame Ahaving a fore-and-aft inwardly directed planar iiange lon its upperhorizontalV rail, said wint. dow frame having an outwardly sloped drain wall on its fore and` aft extend-ing si-de-by-sidettongues 23 integrally. i

connected to the inner end of the plate section,V by separate reverse bend portions 24 of the body and extending in generally parallel underlying relation to the plate section 22, and a planar leaf ysection 25 integrally connected to the plate section 22 at its outer end by another'reverse bend portion 26 of the body and exten-ding generally fore and 'aft at an oblique angle to the plate section 22 in overlying /relation j thereto to project inwardly thereof and terminate at a location to provide an inwardly directed,

stop 27 spaced Vinwardly of the .inner end ofy the plate section to engage the abutment surface 14 whenrthesa'sh frame 11 is in fully closed posit-ion. Each reverse bend portion 24 connects its corresponding tongue 23 in parallel underlying relation to a corresponding portion ofthe plate section to undergo limited swinging movement relatively toward and away therefrom and cooperably constitute a set of gripping jaws that denne a pocket opening through an Yentrance mouth beneath the `outer end of the.

plate section 22 to yreceive and engageably retain the planar mounting ilangellli.' f Y y Similarly, the reverse bend portion 26 mounts the leaf section v25 to undergo swinging movement relatively toward Aand away from the plate section,'and this enables entry of the leaf section 25 beneath the abutment surface 14 during closure of the sashrframe and it produces the downward'bias `on the sash frame lrlifor seating it tightly against rattling. Finally, the stop region 27 of the lock body projects' downwardly a distance suiicient to clear the lower extremities of the abutment surface 14VV and terminates in ed'geloops 27L arranged to receive acon-V 'ventional pull ring 28. Y Y

To release the lock 13 when the ysashfrarne 11 is inl closed position, a downward .force is applied tothe pull ring 28 to swing the leaf-section 25 downwardly sufficiently to enable the stop'27 to clear the abutment sur? face 14. The sash frame 11 is then free to swing away from the sash stop S of the window framev 172, either for complete removal or for location'in a partially open position. The reverse bends 24 preferably bias-the tongues 23 toa pinching jaw configuration for establishing secure engagement with the sashv flange 11F and '-detents,y 23D may be 'struck out'from the tongues to function as sharpteeth capable of penetrating the flange 11F suiiiciently toV maintain it in its installed position against accidentali,

dislodgment. i y y It is important to note that the lock arrangement' ,ist

lower horizontal rail and spaced inwardly of said sash sto-p to vdefine a downwardly tapering pocket'for receiving the lower horizontal sashrail in snung relation therein and said windowframe having an internal marginal abutment surface facing outwardly through said window opening at a location recessed within its upper horizontal rail and spaced Linwardlytof and above said planar ii'ange and a snap-onlcck mountable on said planar flange to engage said abutment surface when the-sash frame is fully seated l Vin the window frame, said lock comprising a one-piece steel lock body of`multi-angular cross sectional configuration and having a generally fore and aft extending intermediate plate'sectionihaving inner and outer ends, a tongue integrally connected to said plate -section at its inner end by a reverse bend portion of said Lbody and extending in general- Vrly parallel underlying relation to a portion of Vsaidplate section tovundergo 'limited swingingfmovemcnt relatively toward-and away from said plate section,ra substantially planar leaf section integrally connected to said plate sectiontatV its outerfend by another reverse ben-d portion of said bodyand extending generally fore and aft at an oblique'an'gleto said plate )section'in overlying relation i, thereto to project inwardly thereof and undergo swingingy movement relatively toward and away from said plate section,psaidtleaf sectionjter-minating in an inner end providing lan inwardly directed stop located inwardly of `the Vinner end of said platesection, and means depending from said inner end of Vsaid leaf section and manually engageable to produce downward swinging movement of Saidjleaf section, said tongue and corresponding plate portion constituting asset of gripping jaws ,defining V`afpocket opening through an entrance mouth beneath the VouterV`v end lof said plate section to receive and engageably retain said planar flange in pinchingrelationbetween said jaws and dispose said rstop in position for engagement with said abutment surface with said downward swinging .movement'of said leaftsection enhancing the pinchingV action ofsaid jaws toV preventl lock actuating forces from j accidentally -disengaging the lock from said flange.

2,.In a window structure ,combinati-on thatfincludes a i rigid windowframe comprisedof spaced pairs of horiyzontal and vertical rails .collectively*definingV a window openingborderedabout its periphery by a fore and aftin- Wardly facingsash stopV at a locationintermcdiately of fore andaft extremities of said window frame, and a rigid sashffrarne comprised of correspondingly spaced ,"pai'rs of. horizontal and vertical` rails of substantially less ateatro? fore and aft dimension than said window frame rails and arranged to seat in closed position within said window frame to span said window opening and abut said sash stop, means mounting said sash frame to undergo swinging movement towards and away from lclosed posit-ion in said window frame, said sash frame having a fore-andaft inwardly directed planar ange on its upper horizontal rail, said window frame having lower horizontal rail structure `defining a horizontally laterally elongated frame-receiving pocket spaced inwardly of said sash stop for receiving the lower horizontal sash rail in snug relation therein and said window frame having an internal marginal abutment surface `facing outwardly through said window opening at a location recessed within its upper horizontal rail and spaced inwardly of and above said planar ange and snap-on lock mountable on said planar ange to engage said abutment surface when the sash frame is fully seated in the window frame, said lock cornprising a one-piece steel lock body of multi-angular cross sectional -coniguration and having ya generally fore and aft extending intermediate plate section having inner and outer ends, a tongue integrally connected to said plate section at its inner end by a reverse bend portion of said body and extending in generally parallel underlying relation to a portion of said plate section to undergo limited swinging movement relatively toward and away from said plate section, a substantially planar Ieat section integrally connected to said plate section at its outer end by another reverse bend portion of said body and extending generally fore and ait at an oblique angle to ysaid plate section in overlying relation thereto to project inwardly thereof and undergo swinging movement relatively toward and away from said plate section, said leaf section terminating in an inner end providing an inwardly directed stop located inwardly of the inner end of said plate section, and means depending from said inner end of said leaf section manually engageable to produce downward swinging movement of said leaf section, with said tongue and corresponding plate Iportion constituting a set of gripping jaws defining a pocket opening through an entrance mouth beneath the outer end of said plate section to receive and engageably retain said planar ange in pinching relation between said jaws and dispose said stop in position for engagement with said abutment surface with said downward swinging movement of said leaf section enhancing the pinching action of said jaws to prevent lock actuating forces from accidentally disengaging the lock from said flange.

References Cited by the Examiner UNITED STATES PATENTS 1,662,453 3/28 Boeck 189--69 1,787,917 l/3l Potter 189-69 1,955,648 4/34 Nickler 292-87 X 2,494,189 1/50 Meyers 189-69 2,565,636 8/51 Tinnerman 292-80 X HARRISON R. MOSELEY, Primary Examiner. 

1. IN A WINDOW STRUCTURE COMBINATION THAT INCLUDES A RIGID WINDOW FRAME COMPRISED OF SPACED PAIRS OF HORIZONTAL AND VERTICAL RAILS COLLECTIVELY DEFINING A WINDOW OPENING BORDERED ABOUT ITS PERIPHERY BY A FORE AND AFT INWARDLY FACING SASH STOP AT A LOCATION INTERMEDIATELY OF FORE AND AFT EXTREMITIES OF SAID WINDOW FRAME, AND A RIGID SASH FRAME COMPRISED OF CORRESPONDING SPACED PAIRS OF HORIZONTAL AND VERTICAL RAILS OF SUBSTANTIALLY LESS FORE AND AFT DIMENSION THAN SAID WINDOW FRAME RAILS AND ARRANGED TO SEAT IN CLOSED POSITION WITHIN SAID WINDOW FRAME TO SPAN SAID WINDOW OPENING AND ABUT SAID SASH STOP, MEANS MOUNTING SAID SASH FRAME TO UNDERGO SWINGING MOVEMENT TOWARDS AND AWAY FROM CLOSED POSITION IN SAID WINDOW FRAME, SAID SASH FRAME HAVING A FORE-AND AFT INWARDLY DIRECTED PLANAR FLANGE ON ITS UPPER HORIZONTAL RAIL, SAID WINDOW FRAME HAVING OUTWARDLY SLOPED DRAIN WALL ON ITS LOWER HORIZONTAL RAIL AND SPACED INWARDLY OF SAID SASH STOP TO DEFINE A DOWNWARDLY TAPERING POCKET FOR RECEIVING THE LOWER HORIZONTAL SASH RAIL IN SUNG RELATION THEREIN AND SAID WINDOW FRAME HAVING AN INTERNAL MARGINAL ABUTMENT SURFACE FACING OUTWARDLY THROUGH SAID WINDOW OPENING AT A LOCATION RECESSED WITHIN ITS UPPER HORIZONTAL RAIL AND SPACED INWARDLY OF AND ABOVE SAID PLANAR FLANGE AND A SNAP-ON LOCK MOUNTABLE ON SAID PLANAR FLANGE TO ENGAGE SAID ABUTMENT SURFACE WHEN THE SASH FRAME IS FULLY SEATED IN THE WINDOW FRAME, SAID LOCK COMPRISING A ONE-PIECE STEEL LOCDING BODY OF MULI-ANGULAR CROSS SECTIONAL CONFIGURATION AND HAVING A GENERALLY FORE AND AFT EXTENDING INTERMEDIATE PLATE SECTION HAVING INNER AND OUTER ENDS, A TONGUE INTEGRALLY CONNECTED TO SAID PLATE SECTION AT ITS INNER END BY A REVERSE BEND PORTION OF SAID BODY AND EXTENDING A GENERALLY PARALLEL UNDERLYING RELATION TO A PORTION OF SAID PLATE SECTION TO UNDERGO LIMITED SWINGING MOVEMENT RELATIVELY TOWARD AND AWAY FROM SAID PLATE SECTION, A SUBSTANTIALLY PLANAR LEAF SECTION INTEGRALLY CONNECTED TO SAID PLATE SECTION AT ITS OUTER END BY ANOTHER REVERSE BEND PORTION OF SAID BODY AND EXTENDING GENERALLY FORE AND AFT AT AN OBLIQUE ANGLE TO SAID PLATE SECTION IN OVERLYING RELATION THERETO TO PROJECT INWARDLY THEREOF AND UNDERGO SWINGING MOVEMENT RELATIVELY TOWARD AND AWAY FRAM SAID PLATE SECTION, SAID LEAF SECTION TERMINATING IN AN INNER END PROVIDING AN INWARDLY DIRECTED STOP LOCATED INWARDLY OF THE INNER END OF SAID PLATE SECTION, AND MEANS DEPENDING FROM SAID INNER END OF SAID LEAF SECTION AND MANUALLY ENGAGEABLE TO PRODUCE DOWNWARD SWINGING MOVEMENT OF SAID LEAF SECTION, WITH SAID TONGUE AND CORRESPONDING PLATE PORTION CONSTITUTING A SET OF GRIPPING JAWS DEFINING A POCKET OPENING THROUGH AN ENTRANCE MOUTH BENEATH THE OUTER END OF SAID PLATE SECTION TO RECEIVE AND ENGAGEABLY RETAIN SAID PLANAR FLANGE IN PINCHING RELATION BETWEEN SAID JAWS AND DISPOSE SAID STOP IN POSITION FOR ENGAGEMENT WITH SAID ABUTMENT SURFACE WITH SAID DOWNWARD SWINGING MOVEMENT OF SAID LEAF SECTION ENHANCING THE PINCHING ACTION OF SAID JAWS TO PREVENT LOCK ACTUATING FORCES FROM ACCIDENTALLY DISENGAGING THE LOCK FROM SAID FLANGE. 